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Volume: 2 | Article ID: art00087
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Color Visualization System for Near-Infrared Multispectral Images
Meritxell Vilaseca
Jaume Pujol
Montserrat Arjona
Francisco Miguel Martínez-Verdú
  DOI :  10.2352/CGIV.2004.2.1.art00087  Published Online :  January 2004
Abstract

In this paper, we analyze a color visualization system for multispectral images belonging to the near-infrared region (NIR, 800-1000 nm). Samples with the same appearance in the visible region can differ in the NIR and can be differentiated by taking into account the extra information included in this region. Using a multispectral system, five different images of textile samples with varying spectral reflectance are obtained. The aim of the study is to analyze how the monochromatic images or spectral bands of the samples (with only a few shades of gray) should be combined in order to obtain a false pseudocolored image (with a large range of different colors). With the color image, it is possible to discriminate clearly between different objects. In order to achieve this separation, it is necessary to define a color space representation. In this paper, several possible combinations based on different methods are presented. The pseudocolored images are then visualized on a calibrated CRT monitor. Finally, the color differences between samples are evaluated using several parameters. The methods which provide the best results in terms of visual discrimination are based on PCA analysis.

Journal Title : Conference on Colour in Graphics, Imaging, and Vision
Publisher Name : Society of Imaging Science and Technology
Publisher Location : 7003 Kilworth Lane, Springfield, VA 22151, USA
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 DOI 10.2352/CGIV.2004.2.1.art00087
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Meritxell Vilaseca, Jaume Pujol, Montserrat Arjona, Francisco Miguel Martínez-Verdú, "Color Visualization System for Near-Infrared Multispectral Images"  in Proc. IS&T CGIV 2004 Second European Conf. on Colour in Graphics, Imaging, and Vision,  2004,  pp 431 - 436,  https://doi.org/10.2352/CGIV.2004.2.1.art00087

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Copyright © Society for Imaging Science and Technology 2004
72010351
Conference on Colour in Graphics, Imaging, and Vision
conf colour graph imag vis
2158-6330
Society of Imaging Science and Technology
7003 Kilworth Lane, Springfield, VA 22151, USA
2158-6330(20040101)2004:1L.431;1-
cgiv_v2004n1/splitsection87.xml
/ist/cgiv/2004/00002004/00000001/art00087
Articles
Color Visualization System for Near-Infrared Multispectral Images
VilasecaMeritxell
PujolJaume
ArjonaMontserrat
Martínez-VerdúFrancisco Miguel
01012004
2004
1
431
436
2004
In this paper, we analyze a color visualization system for multispectral images belonging to the near-infrared region (NIR, 800-1000 nm). Samples with the same appearance in the visible region can differ in the NIR and can be differentiated by taking into account the extra information included in this region. Using a multispectral system, five different images of textile samples with varying spectral reflectance are obtained. The aim of the study is to analyze how the monochromatic images or spectral bands of the samples (with only a few shades of gray) should be combined in order to obtain a false pseudocolored image (with a large range of different colors). With the color image, it is possible to discriminate clearly between different objects. In order to achieve this separation, it is necessary to define a color space representation. In this paper, several possible combinations based on different methods are presented. The pseudocolored images are then visualized on a calibrated CRT monitor. Finally, the color differences between samples are evaluated using several parameters. The methods which provide the best results in terms of visual discrimination are based on PCA analysis.